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oschwartz10612 / poppler-windows

Download Poppler binaries packaged for Windows with dependencies
MIT License
549 stars 59 forks source link

About the output format #50

Closed horixs closed 1 year ago

horixs commented 1 year ago

Is there an option to select the Webp LossLess format in the poppler (pdftoppm) output format?

GitHubRulesOK commented 1 year ago

PDf has no concept of webp format since thats this century after PDF was designed, even JBigger compression is a nightmare of modern variations. So to convert a raw PDF image into PNG is a challenge since its two images for the cost of one input. and about as modern as it gets.

You can use any image converter to mangle lightly compressed lossless into a slower to decompress lossless format, like webp, which is really only of value for reduced HTML transport time. So like many compressed zip formats is pointless once received. Modern storage and cache memory is so relatively cheap, the old desire to have smallest file is now so old fashioned a concept (UNLESS for transportation time).

horixs commented 1 year ago

thank you.

I understand I will use it in the PNG format output by pdftoppm.

Good luck with the Windows build version!

oschwartz10612 commented 1 year ago

Thank you @GitHubRulesOK for tackling this issue! I really appreciate it!

GitHubRulesOK commented 1 year ago

@oschwartz10612 I understand your simply providing a very welcome service (I try to redirect old windows poppler links here ) but it may help to add some masthead/issues documentation to point users at the main site for any FAQ or issues not directly related to your binary mirror repository

oschwartz10612 commented 1 year ago

That's a good idea. I will throw something into the readme shortly.

On Fri, Apr 28, 2023, 08:47 GitHubRulesOK @.***> wrote:

@oschwartz10612 https://github.com/oschwartz10612 I understand your simply providing a very welcome service (I try to redirect old windows poppler links here ) but it may help to add some masthead/issues documentation to point users at the main site for any FAQ or issues not directly related to your binary mirror repository

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